/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:45:28,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:45:28,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:45:28,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:45:28,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:45:28,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:45:28,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:45:28,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:45:28,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:45:28,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:45:28,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:45:28,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:45:28,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:45:28,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:45:28,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:45:28,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:45:28,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:45:28,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:45:28,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:45:28,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:45:28,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:45:28,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:45:28,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:45:28,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:45:28,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:45:28,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:45:28,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:45:28,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:45:28,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:45:28,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:45:28,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:45:28,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:45:28,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:45:28,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:45:28,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:45:28,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:45:28,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:45:28,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:45:28,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:45:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:45:28,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:45:28,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:45:28,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:45:28,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:45:28,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:45:28,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:45:28,239 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:45:28,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:45:28,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:45:28,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:45:28,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:45:28,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:45:28,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:45:28,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:45:28,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:45:28,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:45:28,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:45:28,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:45:28,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:45:28,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:45:28,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:45:28,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:45:28,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:45:28,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:45:28,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:45:28,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:45:28,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:45:28,657 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:45:28,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:45:28,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bdedc5d4/b091dcc4b2d74e278945fcd038826334/FLAGb5d45ba58 [2020-12-22 08:45:29,615 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:45:29,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:45:29,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bdedc5d4/b091dcc4b2d74e278945fcd038826334/FLAGb5d45ba58 [2020-12-22 08:45:30,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bdedc5d4/b091dcc4b2d74e278945fcd038826334 [2020-12-22 08:45:30,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:45:30,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:45:30,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:45:30,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:45:30,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:45:30,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:45:30" (1/1) ... [2020-12-22 08:45:30,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e395e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:30, skipping insertion in model container [2020-12-22 08:45:30,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:45:30" (1/1) ... [2020-12-22 08:45:30,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:45:30,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:45:30,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37364,37377] [2020-12-22 08:45:31,129 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53379,53392] [2020-12-22 08:45:31,201 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61396,61409] [2020-12-22 08:45:31,226 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65378,65391] [2020-12-22 08:45:31,256 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69245,69258] [2020-12-22 08:45:31,373 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86308,86321] [2020-12-22 08:45:31,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94362,94375] [2020-12-22 08:45:31,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98381,98394] [2020-12-22 08:45:31,443 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102285,102298] [2020-12-22 08:45:31,461 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106799,106812] [2020-12-22 08:45:31,481 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110727,110740] [2020-12-22 08:45:31,496 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114746,114759] [2020-12-22 08:45:31,510 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118650,118663] [2020-12-22 08:45:31,526 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122785,122798] [2020-12-22 08:45:31,541 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126856,126869] [2020-12-22 08:45:31,554 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130856,130869] [2020-12-22 08:45:31,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:45:31,631 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:45:31,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37364,37377] [2020-12-22 08:45:31,824 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53379,53392] [2020-12-22 08:45:31,848 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61396,61409] [2020-12-22 08:45:31,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65378,65391] [2020-12-22 08:45:31,871 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69245,69258] [2020-12-22 08:45:31,927 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86308,86321] [2020-12-22 08:45:31,952 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94362,94375] [2020-12-22 08:45:31,966 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98381,98394] [2020-12-22 08:45:31,979 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102285,102298] [2020-12-22 08:45:31,995 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106799,106812] [2020-12-22 08:45:32,008 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110727,110740] [2020-12-22 08:45:32,072 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114746,114759] [2020-12-22 08:45:32,084 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118650,118663] [2020-12-22 08:45:32,098 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122785,122798] [2020-12-22 08:45:32,111 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126856,126869] [2020-12-22 08:45:32,125 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130856,130869] [2020-12-22 08:45:32,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:45:32,186 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:45:32,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32 WrapperNode [2020-12-22 08:45:32,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:45:32,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:45:32,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:45:32,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:45:32,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:45:32,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:45:32,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:45:32,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:45:32,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... [2020-12-22 08:45:32,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:45:32,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:45:32,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:45:32,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:45:32,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:45:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:45:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:45:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:45:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:45:36,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:45:36,591 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:45:36,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:45:36 BoogieIcfgContainer [2020-12-22 08:45:36,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:45:36,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:45:36,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:45:36,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:45:36,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:45:30" (1/3) ... [2020-12-22 08:45:36,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2573d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:45:36, skipping insertion in model container [2020-12-22 08:45:36,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:32" (2/3) ... [2020-12-22 08:45:36,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2573d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:45:36, skipping insertion in model container [2020-12-22 08:45:36,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:45:36" (3/3) ... [2020-12-22 08:45:36,608 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:45:36,619 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:45:36,626 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 08:45:36,645 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 08:45:36,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:45:36,695 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:45:36,695 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:45:36,695 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:45:36,695 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:45:36,695 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:45:36,695 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:45:36,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:45:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states. [2020-12-22 08:45:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:45:36,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:36,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:36,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:36,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2020-12-22 08:45:36,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:36,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326437442] [2020-12-22 08:45:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:37,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326437442] [2020-12-22 08:45:37,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:37,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:37,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755978003] [2020-12-22 08:45:37,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:37,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:37,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:37,430 INFO L87 Difference]: Start difference. First operand 1193 states. Second operand 6 states. [2020-12-22 08:45:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:38,982 INFO L93 Difference]: Finished difference Result 1965 states and 3318 transitions. [2020-12-22 08:45:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:38,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-12-22 08:45:38,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:39,020 INFO L225 Difference]: With dead ends: 1965 [2020-12-22 08:45:39,020 INFO L226 Difference]: Without dead ends: 1354 [2020-12-22 08:45:39,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-12-22 08:45:39,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1238. [2020-12-22 08:45:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2020-12-22 08:45:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1619 transitions. [2020-12-22 08:45:39,202 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1619 transitions. Word has length 73 [2020-12-22 08:45:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:39,203 INFO L481 AbstractCegarLoop]: Abstraction has 1238 states and 1619 transitions. [2020-12-22 08:45:39,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:39,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1619 transitions. [2020-12-22 08:45:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:45:39,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:39,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:39,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:45:39,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:39,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:39,212 INFO L82 PathProgramCache]: Analyzing trace with hash -2060458333, now seen corresponding path program 1 times [2020-12-22 08:45:39,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:39,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745877489] [2020-12-22 08:45:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:39,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745877489] [2020-12-22 08:45:39,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:39,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:39,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450380786] [2020-12-22 08:45:39,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:39,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:39,582 INFO L87 Difference]: Start difference. First operand 1238 states and 1619 transitions. Second operand 6 states. [2020-12-22 08:45:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:40,880 INFO L93 Difference]: Finished difference Result 1948 states and 2548 transitions. [2020-12-22 08:45:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:40,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-12-22 08:45:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:40,890 INFO L225 Difference]: With dead ends: 1948 [2020-12-22 08:45:40,891 INFO L226 Difference]: Without dead ends: 1420 [2020-12-22 08:45:40,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-12-22 08:45:40,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1355. [2020-12-22 08:45:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-12-22 08:45:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1798 transitions. [2020-12-22 08:45:40,976 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1798 transitions. Word has length 73 [2020-12-22 08:45:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:40,976 INFO L481 AbstractCegarLoop]: Abstraction has 1355 states and 1798 transitions. [2020-12-22 08:45:40,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1798 transitions. [2020-12-22 08:45:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:45:40,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:40,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:40,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:45:40,982 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:40,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1618618520, now seen corresponding path program 1 times [2020-12-22 08:45:40,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:40,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560604954] [2020-12-22 08:45:40,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:41,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560604954] [2020-12-22 08:45:41,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:41,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:41,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277816821] [2020-12-22 08:45:41,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:41,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:41,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:41,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:41,141 INFO L87 Difference]: Start difference. First operand 1355 states and 1798 transitions. Second operand 6 states. [2020-12-22 08:45:42,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:42,046 INFO L93 Difference]: Finished difference Result 2129 states and 2860 transitions. [2020-12-22 08:45:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:42,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-12-22 08:45:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:42,056 INFO L225 Difference]: With dead ends: 2129 [2020-12-22 08:45:42,056 INFO L226 Difference]: Without dead ends: 1418 [2020-12-22 08:45:42,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:42,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2020-12-22 08:45:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1352. [2020-12-22 08:45:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-12-22 08:45:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1840 transitions. [2020-12-22 08:45:42,145 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1840 transitions. Word has length 73 [2020-12-22 08:45:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:42,146 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1840 transitions. [2020-12-22 08:45:42,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1840 transitions. [2020-12-22 08:45:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:45:42,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:42,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:42,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:45:42,150 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:42,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash -700009990, now seen corresponding path program 1 times [2020-12-22 08:45:42,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:42,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904992759] [2020-12-22 08:45:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:42,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904992759] [2020-12-22 08:45:42,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:42,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:45:42,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595861066] [2020-12-22 08:45:42,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:45:42,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:42,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:45:42,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:45:42,261 INFO L87 Difference]: Start difference. First operand 1352 states and 1840 transitions. Second operand 5 states. [2020-12-22 08:45:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:42,698 INFO L93 Difference]: Finished difference Result 2018 states and 2797 transitions. [2020-12-22 08:45:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:42,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:45:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:42,705 INFO L225 Difference]: With dead ends: 2018 [2020-12-22 08:45:42,705 INFO L226 Difference]: Without dead ends: 1197 [2020-12-22 08:45:42,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-12-22 08:45:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1197. [2020-12-22 08:45:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-12-22 08:45:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1633 transitions. [2020-12-22 08:45:42,846 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1633 transitions. Word has length 75 [2020-12-22 08:45:42,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:42,849 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1633 transitions. [2020-12-22 08:45:42,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:45:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1633 transitions. [2020-12-22 08:45:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:45:42,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:42,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:42,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:45:42,853 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:42,853 INFO L82 PathProgramCache]: Analyzing trace with hash 426814868, now seen corresponding path program 1 times [2020-12-22 08:45:42,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:42,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644093458] [2020-12-22 08:45:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:43,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644093458] [2020-12-22 08:45:43,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:43,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:45:43,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328751694] [2020-12-22 08:45:43,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:45:43,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:43,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:45:43,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:45:43,021 INFO L87 Difference]: Start difference. First operand 1197 states and 1633 transitions. Second operand 5 states. [2020-12-22 08:45:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:43,450 INFO L93 Difference]: Finished difference Result 1960 states and 2710 transitions. [2020-12-22 08:45:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:43,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 08:45:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:43,457 INFO L225 Difference]: With dead ends: 1960 [2020-12-22 08:45:43,457 INFO L226 Difference]: Without dead ends: 1140 [2020-12-22 08:45:43,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2020-12-22 08:45:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2020-12-22 08:45:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-12-22 08:45:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1555 transitions. [2020-12-22 08:45:43,539 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1555 transitions. Word has length 77 [2020-12-22 08:45:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:43,540 INFO L481 AbstractCegarLoop]: Abstraction has 1140 states and 1555 transitions. [2020-12-22 08:45:43,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:45:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1555 transitions. [2020-12-22 08:45:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:43,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:43,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:43,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:45:43,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:43,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:43,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2020-12-22 08:45:43,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:43,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516581067] [2020-12-22 08:45:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:43,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516581067] [2020-12-22 08:45:43,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:43,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:43,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470371959] [2020-12-22 08:45:43,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:45:43,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:43,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:45:43,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:43,769 INFO L87 Difference]: Start difference. First operand 1140 states and 1555 transitions. Second operand 8 states. [2020-12-22 08:45:44,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:44,810 INFO L93 Difference]: Finished difference Result 2497 states and 3512 transitions. [2020-12-22 08:45:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 08:45:44,811 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-12-22 08:45:44,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:44,821 INFO L225 Difference]: With dead ends: 2497 [2020-12-22 08:45:44,821 INFO L226 Difference]: Without dead ends: 1782 [2020-12-22 08:45:44,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:45:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2020-12-22 08:45:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 983. [2020-12-22 08:45:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1341 transitions. [2020-12-22 08:45:44,914 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1341 transitions. Word has length 79 [2020-12-22 08:45:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:44,915 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1341 transitions. [2020-12-22 08:45:44,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:45:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1341 transitions. [2020-12-22 08:45:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:44,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:44,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:44,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:45:44,918 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:44,919 INFO L82 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2020-12-22 08:45:44,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:44,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140126199] [2020-12-22 08:45:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:45,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140126199] [2020-12-22 08:45:45,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:45,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:45,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450812320] [2020-12-22 08:45:45,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:45,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:45,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:45,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:45,115 INFO L87 Difference]: Start difference. First operand 983 states and 1341 transitions. Second operand 9 states. [2020-12-22 08:45:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:46,990 INFO L93 Difference]: Finished difference Result 3279 states and 4693 transitions. [2020-12-22 08:45:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:46,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:47,005 INFO L225 Difference]: With dead ends: 3279 [2020-12-22 08:45:47,006 INFO L226 Difference]: Without dead ends: 2744 [2020-12-22 08:45:47,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2020-12-22 08:45:47,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 983. [2020-12-22 08:45:47,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1340 transitions. [2020-12-22 08:45:47,123 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1340 transitions. Word has length 79 [2020-12-22 08:45:47,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:47,123 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1340 transitions. [2020-12-22 08:45:47,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1340 transitions. [2020-12-22 08:45:47,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:47,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:47,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:47,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:45:47,126 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:47,127 INFO L82 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2020-12-22 08:45:47,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:47,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535824556] [2020-12-22 08:45:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:47,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535824556] [2020-12-22 08:45:47,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:47,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:47,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435541030] [2020-12-22 08:45:47,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:47,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:47,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:47,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:47,334 INFO L87 Difference]: Start difference. First operand 983 states and 1340 transitions. Second operand 9 states. [2020-12-22 08:45:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:48,776 INFO L93 Difference]: Finished difference Result 2346 states and 3351 transitions. [2020-12-22 08:45:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:48,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:48,788 INFO L225 Difference]: With dead ends: 2346 [2020-12-22 08:45:48,788 INFO L226 Difference]: Without dead ends: 1739 [2020-12-22 08:45:48,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-12-22 08:45:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 983. [2020-12-22 08:45:48,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1339 transitions. [2020-12-22 08:45:48,911 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1339 transitions. Word has length 79 [2020-12-22 08:45:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:48,911 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1339 transitions. [2020-12-22 08:45:48,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:48,911 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1339 transitions. [2020-12-22 08:45:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:45:48,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:48,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:48,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:45:48,914 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:48,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:48,914 INFO L82 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2020-12-22 08:45:48,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:48,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860425184] [2020-12-22 08:45:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:49,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860425184] [2020-12-22 08:45:49,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:49,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:49,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394610849] [2020-12-22 08:45:49,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:49,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:49,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:49,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:49,142 INFO L87 Difference]: Start difference. First operand 983 states and 1339 transitions. Second operand 9 states. [2020-12-22 08:45:51,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:51,008 INFO L93 Difference]: Finished difference Result 3215 states and 4602 transitions. [2020-12-22 08:45:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:51,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:45:51,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:51,022 INFO L225 Difference]: With dead ends: 3215 [2020-12-22 08:45:51,023 INFO L226 Difference]: Without dead ends: 2707 [2020-12-22 08:45:51,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2020-12-22 08:45:51,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 983. [2020-12-22 08:45:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1338 transitions. [2020-12-22 08:45:51,173 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1338 transitions. Word has length 80 [2020-12-22 08:45:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:51,174 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1338 transitions. [2020-12-22 08:45:51,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1338 transitions. [2020-12-22 08:45:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:51,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:51,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:51,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:45:51,176 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:51,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1495415488, now seen corresponding path program 1 times [2020-12-22 08:45:51,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:51,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122780496] [2020-12-22 08:45:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:51,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122780496] [2020-12-22 08:45:51,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:51,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:51,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348680369] [2020-12-22 08:45:51,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:51,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:51,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:51,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:51,372 INFO L87 Difference]: Start difference. First operand 983 states and 1338 transitions. Second operand 9 states. [2020-12-22 08:45:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:52,813 INFO L93 Difference]: Finished difference Result 2365 states and 3363 transitions. [2020-12-22 08:45:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:45:52,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:52,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:52,824 INFO L225 Difference]: With dead ends: 2365 [2020-12-22 08:45:52,824 INFO L226 Difference]: Without dead ends: 1739 [2020-12-22 08:45:52,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:45:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-12-22 08:45:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 983. [2020-12-22 08:45:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1337 transitions. [2020-12-22 08:45:52,947 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1337 transitions. Word has length 81 [2020-12-22 08:45:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:52,947 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1337 transitions. [2020-12-22 08:45:52,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1337 transitions. [2020-12-22 08:45:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:52,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:52,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:52,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:45:52,950 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1996016320, now seen corresponding path program 1 times [2020-12-22 08:45:52,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:52,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30814976] [2020-12-22 08:45:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:53,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30814976] [2020-12-22 08:45:53,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:53,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:53,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570338000] [2020-12-22 08:45:53,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:53,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:53,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:53,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:53,137 INFO L87 Difference]: Start difference. First operand 983 states and 1337 transitions. Second operand 9 states. [2020-12-22 08:45:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:55,218 INFO L93 Difference]: Finished difference Result 3276 states and 4681 transitions. [2020-12-22 08:45:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:55,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:55,233 INFO L225 Difference]: With dead ends: 3276 [2020-12-22 08:45:55,233 INFO L226 Difference]: Without dead ends: 2744 [2020-12-22 08:45:55,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:55,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2020-12-22 08:45:55,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 983. [2020-12-22 08:45:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:55,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1336 transitions. [2020-12-22 08:45:55,380 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1336 transitions. Word has length 81 [2020-12-22 08:45:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:55,380 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1336 transitions. [2020-12-22 08:45:55,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1336 transitions. [2020-12-22 08:45:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:55,383 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:55,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:55,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:45:55,384 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:55,384 INFO L82 PathProgramCache]: Analyzing trace with hash -583258688, now seen corresponding path program 1 times [2020-12-22 08:45:55,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:55,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242949646] [2020-12-22 08:45:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:55,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242949646] [2020-12-22 08:45:55,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:55,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:55,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363150367] [2020-12-22 08:45:55,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:55,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:55,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:55,557 INFO L87 Difference]: Start difference. First operand 983 states and 1336 transitions. Second operand 9 states. [2020-12-22 08:45:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:57,296 INFO L93 Difference]: Finished difference Result 3215 states and 4598 transitions. [2020-12-22 08:45:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:57,296 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:57,309 INFO L225 Difference]: With dead ends: 3215 [2020-12-22 08:45:57,310 INFO L226 Difference]: Without dead ends: 2707 [2020-12-22 08:45:57,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2020-12-22 08:45:57,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 983. [2020-12-22 08:45:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1335 transitions. [2020-12-22 08:45:57,478 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1335 transitions. Word has length 81 [2020-12-22 08:45:57,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:57,479 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1335 transitions. [2020-12-22 08:45:57,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1335 transitions. [2020-12-22 08:45:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:57,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:57,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:57,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:45:57,482 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:57,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1694349184, now seen corresponding path program 1 times [2020-12-22 08:45:57,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:57,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826104178] [2020-12-22 08:45:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:57,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826104178] [2020-12-22 08:45:57,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:57,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:57,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298345118] [2020-12-22 08:45:57,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:57,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:57,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:57,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:57,660 INFO L87 Difference]: Start difference. First operand 983 states and 1335 transitions. Second operand 9 states. [2020-12-22 08:45:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:59,528 INFO L93 Difference]: Finished difference Result 3220 states and 4604 transitions. [2020-12-22 08:45:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:59,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:59,543 INFO L225 Difference]: With dead ends: 3220 [2020-12-22 08:45:59,544 INFO L226 Difference]: Without dead ends: 2707 [2020-12-22 08:45:59,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2020-12-22 08:45:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 983. [2020-12-22 08:45:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-12-22 08:45:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1334 transitions. [2020-12-22 08:45:59,716 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1334 transitions. Word has length 81 [2020-12-22 08:45:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:59,717 INFO L481 AbstractCegarLoop]: Abstraction has 983 states and 1334 transitions. [2020-12-22 08:45:59,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1334 transitions. [2020-12-22 08:45:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:59,719 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:59,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:59,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:45:59,719 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:59,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1372385248, now seen corresponding path program 1 times [2020-12-22 08:45:59,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:59,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433341748] [2020-12-22 08:45:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:00,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:00,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433341748] [2020-12-22 08:46:00,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:00,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:00,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213008339] [2020-12-22 08:46:00,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:00,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:00,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:00,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:00,010 INFO L87 Difference]: Start difference. First operand 983 states and 1334 transitions. Second operand 11 states. [2020-12-22 08:46:05,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:05,644 INFO L93 Difference]: Finished difference Result 8982 states and 13055 transitions. [2020-12-22 08:46:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:46:05,645 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-12-22 08:46:05,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:05,665 INFO L225 Difference]: With dead ends: 8982 [2020-12-22 08:46:05,665 INFO L226 Difference]: Without dead ends: 8436 [2020-12-22 08:46:05,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:46:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2020-12-22 08:46:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 988. [2020-12-22 08:46:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2020-12-22 08:46:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1339 transitions. [2020-12-22 08:46:05,956 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1339 transitions. Word has length 81 [2020-12-22 08:46:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:05,957 INFO L481 AbstractCegarLoop]: Abstraction has 988 states and 1339 transitions. [2020-12-22 08:46:05,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1339 transitions. [2020-12-22 08:46:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:46:05,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:05,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:05,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:46:05,959 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:05,960 INFO L82 PathProgramCache]: Analyzing trace with hash 845637120, now seen corresponding path program 1 times [2020-12-22 08:46:05,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:05,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226202126] [2020-12-22 08:46:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:06,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226202126] [2020-12-22 08:46:06,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:06,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:06,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604650936] [2020-12-22 08:46:06,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:06,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:06,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:06,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:06,214 INFO L87 Difference]: Start difference. First operand 988 states and 1339 transitions. Second operand 11 states. [2020-12-22 08:46:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:11,647 INFO L93 Difference]: Finished difference Result 7618 states and 11013 transitions. [2020-12-22 08:46:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:46:11,648 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-12-22 08:46:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:11,665 INFO L225 Difference]: With dead ends: 7618 [2020-12-22 08:46:11,665 INFO L226 Difference]: Without dead ends: 7110 [2020-12-22 08:46:11,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:46:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2020-12-22 08:46:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 993. [2020-12-22 08:46:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-12-22 08:46:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1344 transitions. [2020-12-22 08:46:11,969 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1344 transitions. Word has length 81 [2020-12-22 08:46:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:11,969 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1344 transitions. [2020-12-22 08:46:11,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1344 transitions. [2020-12-22 08:46:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:46:11,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:11,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:11,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:46:11,972 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:11,973 INFO L82 PathProgramCache]: Analyzing trace with hash 962867702, now seen corresponding path program 1 times [2020-12-22 08:46:11,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:11,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697679753] [2020-12-22 08:46:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:12,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697679753] [2020-12-22 08:46:12,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:12,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:12,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005451028] [2020-12-22 08:46:12,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:12,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:12,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:12,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:12,148 INFO L87 Difference]: Start difference. First operand 993 states and 1344 transitions. Second operand 9 states. [2020-12-22 08:46:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:14,446 INFO L93 Difference]: Finished difference Result 3541 states and 5119 transitions. [2020-12-22 08:46:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:14,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:46:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:14,454 INFO L225 Difference]: With dead ends: 3541 [2020-12-22 08:46:14,454 INFO L226 Difference]: Without dead ends: 3046 [2020-12-22 08:46:14,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2020-12-22 08:46:14,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 992. [2020-12-22 08:46:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-12-22 08:46:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1342 transitions. [2020-12-22 08:46:14,767 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1342 transitions. Word has length 81 [2020-12-22 08:46:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:14,768 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1342 transitions. [2020-12-22 08:46:14,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1342 transitions. [2020-12-22 08:46:14,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:14,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:14,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:14,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:46:14,771 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:14,771 INFO L82 PathProgramCache]: Analyzing trace with hash 547042711, now seen corresponding path program 1 times [2020-12-22 08:46:14,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:14,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647948747] [2020-12-22 08:46:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:14,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647948747] [2020-12-22 08:46:14,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:14,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:14,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417605997] [2020-12-22 08:46:14,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:14,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:14,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:14,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:14,974 INFO L87 Difference]: Start difference. First operand 992 states and 1342 transitions. Second operand 9 states. [2020-12-22 08:46:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:17,250 INFO L93 Difference]: Finished difference Result 3543 states and 5120 transitions. [2020-12-22 08:46:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:17,251 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:17,258 INFO L225 Difference]: With dead ends: 3543 [2020-12-22 08:46:17,258 INFO L226 Difference]: Without dead ends: 3046 [2020-12-22 08:46:17,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:17,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2020-12-22 08:46:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 992. [2020-12-22 08:46:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-12-22 08:46:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1341 transitions. [2020-12-22 08:46:17,540 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1341 transitions. Word has length 82 [2020-12-22 08:46:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:17,541 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1341 transitions. [2020-12-22 08:46:17,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1341 transitions. [2020-12-22 08:46:17,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:17,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:17,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:17,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:46:17,544 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:17,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:17,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1592889193, now seen corresponding path program 1 times [2020-12-22 08:46:17,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:17,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755256533] [2020-12-22 08:46:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:17,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755256533] [2020-12-22 08:46:17,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:17,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:17,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604642731] [2020-12-22 08:46:17,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:17,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:17,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:17,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:17,745 INFO L87 Difference]: Start difference. First operand 992 states and 1341 transitions. Second operand 9 states. [2020-12-22 08:46:20,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:20,365 INFO L93 Difference]: Finished difference Result 3543 states and 5119 transitions. [2020-12-22 08:46:20,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:20,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:20,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:20,371 INFO L225 Difference]: With dead ends: 3543 [2020-12-22 08:46:20,371 INFO L226 Difference]: Without dead ends: 3046 [2020-12-22 08:46:20,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2020-12-22 08:46:20,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 992. [2020-12-22 08:46:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-12-22 08:46:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1340 transitions. [2020-12-22 08:46:20,647 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1340 transitions. Word has length 82 [2020-12-22 08:46:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:20,647 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1340 transitions. [2020-12-22 08:46:20,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1340 transitions. [2020-12-22 08:46:20,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:20,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:20,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:20,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:46:20,655 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:20,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:20,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1441526830, now seen corresponding path program 1 times [2020-12-22 08:46:20,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:20,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228655358] [2020-12-22 08:46:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:20,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228655358] [2020-12-22 08:46:20,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:20,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:20,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056550653] [2020-12-22 08:46:20,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:20,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:20,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:20,847 INFO L87 Difference]: Start difference. First operand 992 states and 1340 transitions. Second operand 9 states. [2020-12-22 08:46:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:23,074 INFO L93 Difference]: Finished difference Result 3294 states and 4697 transitions. [2020-12-22 08:46:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:23,075 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:23,078 INFO L225 Difference]: With dead ends: 3294 [2020-12-22 08:46:23,078 INFO L226 Difference]: Without dead ends: 2748 [2020-12-22 08:46:23,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-12-22 08:46:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 987. [2020-12-22 08:46:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1334 transitions. [2020-12-22 08:46:23,366 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1334 transitions. Word has length 82 [2020-12-22 08:46:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:23,366 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1334 transitions. [2020-12-22 08:46:23,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1334 transitions. [2020-12-22 08:46:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:23,367 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:23,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:23,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:46:23,368 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:23,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:23,369 INFO L82 PathProgramCache]: Analyzing trace with hash 906756407, now seen corresponding path program 1 times [2020-12-22 08:46:23,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:23,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025318675] [2020-12-22 08:46:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:23,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:23,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025318675] [2020-12-22 08:46:23,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:23,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:23,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178575310] [2020-12-22 08:46:23,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:23,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:23,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:23,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:23,548 INFO L87 Difference]: Start difference. First operand 987 states and 1334 transitions. Second operand 9 states. [2020-12-22 08:46:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:25,951 INFO L93 Difference]: Finished difference Result 3538 states and 5112 transitions. [2020-12-22 08:46:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:25,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:25,958 INFO L225 Difference]: With dead ends: 3538 [2020-12-22 08:46:25,958 INFO L226 Difference]: Without dead ends: 3041 [2020-12-22 08:46:25,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:25,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2020-12-22 08:46:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 987. [2020-12-22 08:46:26,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1333 transitions. [2020-12-22 08:46:26,263 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1333 transitions. Word has length 82 [2020-12-22 08:46:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:26,263 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1333 transitions. [2020-12-22 08:46:26,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1333 transitions. [2020-12-22 08:46:26,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:26,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:26,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:26,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:46:26,265 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1674020809, now seen corresponding path program 1 times [2020-12-22 08:46:26,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:26,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943573455] [2020-12-22 08:46:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:26,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943573455] [2020-12-22 08:46:26,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:26,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:46:26,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4502912] [2020-12-22 08:46:26,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:46:26,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:26,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:46:26,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:46:26,529 INFO L87 Difference]: Start difference. First operand 987 states and 1333 transitions. Second operand 12 states. [2020-12-22 08:46:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:31,168 INFO L93 Difference]: Finished difference Result 3853 states and 5488 transitions. [2020-12-22 08:46:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:31,169 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-12-22 08:46:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:31,172 INFO L225 Difference]: With dead ends: 3853 [2020-12-22 08:46:31,172 INFO L226 Difference]: Without dead ends: 3356 [2020-12-22 08:46:31,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:46:31,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-12-22 08:46:31,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 987. [2020-12-22 08:46:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1332 transitions. [2020-12-22 08:46:31,525 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1332 transitions. Word has length 82 [2020-12-22 08:46:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:31,525 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1332 transitions. [2020-12-22 08:46:31,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:46:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1332 transitions. [2020-12-22 08:46:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:31,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:31,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:31,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:46:31,527 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:31,527 INFO L82 PathProgramCache]: Analyzing trace with hash 497143476, now seen corresponding path program 1 times [2020-12-22 08:46:31,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:31,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118887349] [2020-12-22 08:46:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:31,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118887349] [2020-12-22 08:46:31,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:31,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:31,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913824589] [2020-12-22 08:46:31,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:31,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:31,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:31,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:31,683 INFO L87 Difference]: Start difference. First operand 987 states and 1332 transitions. Second operand 9 states. [2020-12-22 08:46:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:34,151 INFO L93 Difference]: Finished difference Result 3214 states and 4587 transitions. [2020-12-22 08:46:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:34,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:34,157 INFO L225 Difference]: With dead ends: 3214 [2020-12-22 08:46:34,157 INFO L226 Difference]: Without dead ends: 2706 [2020-12-22 08:46:34,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2020-12-22 08:46:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 982. [2020-12-22 08:46:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2020-12-22 08:46:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1326 transitions. [2020-12-22 08:46:34,438 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1326 transitions. Word has length 82 [2020-12-22 08:46:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:34,438 INFO L481 AbstractCegarLoop]: Abstraction has 982 states and 1326 transitions. [2020-12-22 08:46:34,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1326 transitions. [2020-12-22 08:46:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:34,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:34,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:34,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:46:34,439 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:34,440 INFO L82 PathProgramCache]: Analyzing trace with hash 2120283973, now seen corresponding path program 1 times [2020-12-22 08:46:34,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:34,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247618155] [2020-12-22 08:46:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:34,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247618155] [2020-12-22 08:46:34,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:34,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:34,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998482419] [2020-12-22 08:46:34,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:34,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:34,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:34,669 INFO L87 Difference]: Start difference. First operand 982 states and 1326 transitions. Second operand 9 states. [2020-12-22 08:46:37,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:37,248 INFO L93 Difference]: Finished difference Result 3042 states and 4365 transitions. [2020-12-22 08:46:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:37,249 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:46:37,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:37,252 INFO L225 Difference]: With dead ends: 3042 [2020-12-22 08:46:37,252 INFO L226 Difference]: Without dead ends: 3036 [2020-12-22 08:46:37,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2020-12-22 08:46:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 982. [2020-12-22 08:46:37,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2020-12-22 08:46:37,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1325 transitions. [2020-12-22 08:46:37,578 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1325 transitions. Word has length 83 [2020-12-22 08:46:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:37,578 INFO L481 AbstractCegarLoop]: Abstraction has 982 states and 1325 transitions. [2020-12-22 08:46:37,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1325 transitions. [2020-12-22 08:46:37,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:37,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:37,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:37,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:46:37,581 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:37,581 INFO L82 PathProgramCache]: Analyzing trace with hash -647233403, now seen corresponding path program 1 times [2020-12-22 08:46:37,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:37,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191436065] [2020-12-22 08:46:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:37,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191436065] [2020-12-22 08:46:37,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:37,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:37,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252640432] [2020-12-22 08:46:37,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:37,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:37,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:37,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:37,829 INFO L87 Difference]: Start difference. First operand 982 states and 1325 transitions. Second operand 11 states. [2020-12-22 08:46:43,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:43,283 INFO L93 Difference]: Finished difference Result 5920 states and 8543 transitions. [2020-12-22 08:46:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:43,284 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-12-22 08:46:43,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:43,289 INFO L225 Difference]: With dead ends: 5920 [2020-12-22 08:46:43,289 INFO L226 Difference]: Without dead ends: 5901 [2020-12-22 08:46:43,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:46:43,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2020-12-22 08:46:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 987. [2020-12-22 08:46:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:43,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1330 transitions. [2020-12-22 08:46:43,649 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1330 transitions. Word has length 83 [2020-12-22 08:46:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:43,649 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1330 transitions. [2020-12-22 08:46:43,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1330 transitions. [2020-12-22 08:46:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:43,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:43,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:43,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:46:43,651 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:43,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1292109307, now seen corresponding path program 1 times [2020-12-22 08:46:43,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:43,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219583536] [2020-12-22 08:46:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:43,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219583536] [2020-12-22 08:46:43,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:43,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:46:43,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141772286] [2020-12-22 08:46:43,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:46:43,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:43,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:46:43,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:46:43,919 INFO L87 Difference]: Start difference. First operand 987 states and 1330 transitions. Second operand 12 states. [2020-12-22 08:46:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:49,021 INFO L93 Difference]: Finished difference Result 3365 states and 4748 transitions. [2020-12-22 08:46:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:49,021 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-12-22 08:46:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:49,025 INFO L225 Difference]: With dead ends: 3365 [2020-12-22 08:46:49,025 INFO L226 Difference]: Without dead ends: 3359 [2020-12-22 08:46:49,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:46:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2020-12-22 08:46:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 987. [2020-12-22 08:46:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1329 transitions. [2020-12-22 08:46:49,291 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1329 transitions. Word has length 83 [2020-12-22 08:46:49,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:49,292 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1329 transitions. [2020-12-22 08:46:49,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:46:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1329 transitions. [2020-12-22 08:46:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:49,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:49,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:49,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:46:49,294 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:49,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2136665467, now seen corresponding path program 1 times [2020-12-22 08:46:49,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:49,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480510335] [2020-12-22 08:46:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:49,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480510335] [2020-12-22 08:46:49,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:49,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:49,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003596121] [2020-12-22 08:46:49,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:49,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:49,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:49,479 INFO L87 Difference]: Start difference. First operand 987 states and 1329 transitions. Second operand 9 states. [2020-12-22 08:46:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:52,180 INFO L93 Difference]: Finished difference Result 3541 states and 5110 transitions. [2020-12-22 08:46:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:52,181 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:46:52,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:52,185 INFO L225 Difference]: With dead ends: 3541 [2020-12-22 08:46:52,185 INFO L226 Difference]: Without dead ends: 3041 [2020-12-22 08:46:52,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2020-12-22 08:46:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 987. [2020-12-22 08:46:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1328 transitions. [2020-12-22 08:46:52,467 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1328 transitions. Word has length 83 [2020-12-22 08:46:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:52,468 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1328 transitions. [2020-12-22 08:46:52,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1328 transitions. [2020-12-22 08:46:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:52,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:52,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:52,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:46:52,469 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:52,469 INFO L82 PathProgramCache]: Analyzing trace with hash -609215547, now seen corresponding path program 1 times [2020-12-22 08:46:52,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:52,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054564707] [2020-12-22 08:46:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:52,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054564707] [2020-12-22 08:46:52,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:52,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:52,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320039648] [2020-12-22 08:46:52,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:52,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:52,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:52,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:52,622 INFO L87 Difference]: Start difference. First operand 987 states and 1328 transitions. Second operand 9 states. [2020-12-22 08:46:55,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:55,015 INFO L93 Difference]: Finished difference Result 3219 states and 4586 transitions. [2020-12-22 08:46:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:55,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:46:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:55,018 INFO L225 Difference]: With dead ends: 3219 [2020-12-22 08:46:55,018 INFO L226 Difference]: Without dead ends: 2706 [2020-12-22 08:46:55,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2020-12-22 08:46:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 987. [2020-12-22 08:46:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-22 08:46:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1327 transitions. [2020-12-22 08:46:55,287 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1327 transitions. Word has length 83 [2020-12-22 08:46:55,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:55,288 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1327 transitions. [2020-12-22 08:46:55,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1327 transitions. [2020-12-22 08:46:55,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:55,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:55,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:55,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:46:55,290 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:55,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:55,290 INFO L82 PathProgramCache]: Analyzing trace with hash -2078948027, now seen corresponding path program 1 times [2020-12-22 08:46:55,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:55,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602702199] [2020-12-22 08:46:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:55,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602702199] [2020-12-22 08:46:55,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:55,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:55,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793900834] [2020-12-22 08:46:55,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:55,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:55,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:55,509 INFO L87 Difference]: Start difference. First operand 987 states and 1327 transitions. Second operand 11 states. [2020-12-22 08:47:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:03,863 INFO L93 Difference]: Finished difference Result 9032 states and 13084 transitions. [2020-12-22 08:47:03,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:47:03,864 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-12-22 08:47:03,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:03,872 INFO L225 Difference]: With dead ends: 9032 [2020-12-22 08:47:03,872 INFO L226 Difference]: Without dead ends: 8463 [2020-12-22 08:47:03,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:47:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8463 states. [2020-12-22 08:47:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8463 to 992. [2020-12-22 08:47:04,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-12-22 08:47:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1332 transitions. [2020-12-22 08:47:04,207 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1332 transitions. Word has length 83 [2020-12-22 08:47:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:04,207 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1332 transitions. [2020-12-22 08:47:04,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1332 transitions. [2020-12-22 08:47:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:04,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:04,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:04,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:47:04,210 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1135938619, now seen corresponding path program 1 times [2020-12-22 08:47:04,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:04,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793751344] [2020-12-22 08:47:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:04,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793751344] [2020-12-22 08:47:04,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:04,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:04,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026041966] [2020-12-22 08:47:04,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:04,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:04,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:04,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:04,388 INFO L87 Difference]: Start difference. First operand 992 states and 1332 transitions. Second operand 9 states. [2020-12-22 08:47:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:07,437 INFO L93 Difference]: Finished difference Result 3546 states and 5113 transitions. [2020-12-22 08:47:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:47:07,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:47:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:07,442 INFO L225 Difference]: With dead ends: 3546 [2020-12-22 08:47:07,442 INFO L226 Difference]: Without dead ends: 3046 [2020-12-22 08:47:07,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:47:07,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2020-12-22 08:47:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 992. [2020-12-22 08:47:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-12-22 08:47:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1331 transitions. [2020-12-22 08:47:07,783 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1331 transitions. Word has length 83 [2020-12-22 08:47:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:07,784 INFO L481 AbstractCegarLoop]: Abstraction has 992 states and 1331 transitions. [2020-12-22 08:47:07,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1331 transitions. [2020-12-22 08:47:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:07,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:07,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:07,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:47:07,786 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:07,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:07,786 INFO L82 PathProgramCache]: Analyzing trace with hash -120186235, now seen corresponding path program 1 times [2020-12-22 08:47:07,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:07,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615782379] [2020-12-22 08:47:07,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:08,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615782379] [2020-12-22 08:47:08,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:08,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:08,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113345455] [2020-12-22 08:47:08,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:08,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:08,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:08,018 INFO L87 Difference]: Start difference. First operand 992 states and 1331 transitions. Second operand 11 states. [2020-12-22 08:47:15,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:15,670 INFO L93 Difference]: Finished difference Result 7627 states and 11005 transitions. [2020-12-22 08:47:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:47:15,671 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-12-22 08:47:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:15,678 INFO L225 Difference]: With dead ends: 7627 [2020-12-22 08:47:15,678 INFO L226 Difference]: Without dead ends: 7114 [2020-12-22 08:47:15,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:47:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2020-12-22 08:47:16,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 997. [2020-12-22 08:47:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-12-22 08:47:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1336 transitions. [2020-12-22 08:47:16,126 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1336 transitions. Word has length 83 [2020-12-22 08:47:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:16,126 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1336 transitions. [2020-12-22 08:47:16,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:16,126 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1336 transitions. [2020-12-22 08:47:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:16,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:16,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:16,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:47:16,128 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:16,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1344158299, now seen corresponding path program 1 times [2020-12-22 08:47:16,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:16,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204732190] [2020-12-22 08:47:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:16,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204732190] [2020-12-22 08:47:16,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:16,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:47:16,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808276864] [2020-12-22 08:47:16,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:47:16,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:16,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:47:16,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:47:16,415 INFO L87 Difference]: Start difference. First operand 997 states and 1336 transitions. Second operand 12 states. [2020-12-22 08:47:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:22,184 INFO L93 Difference]: Finished difference Result 3869 states and 5497 transitions. [2020-12-22 08:47:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:22,185 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-12-22 08:47:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:22,189 INFO L225 Difference]: With dead ends: 3869 [2020-12-22 08:47:22,190 INFO L226 Difference]: Without dead ends: 3369 [2020-12-22 08:47:22,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:47:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2020-12-22 08:47:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 997. [2020-12-22 08:47:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-12-22 08:47:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1335 transitions. [2020-12-22 08:47:22,670 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1335 transitions. Word has length 83 [2020-12-22 08:47:22,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:22,671 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1335 transitions. [2020-12-22 08:47:22,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:47:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1335 transitions. [2020-12-22 08:47:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:22,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:22,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:22,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:47:22,673 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:22,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:22,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1785662459, now seen corresponding path program 1 times [2020-12-22 08:47:22,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:22,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939272500] [2020-12-22 08:47:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:22,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939272500] [2020-12-22 08:47:22,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:22,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:47:22,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641158653] [2020-12-22 08:47:22,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:47:22,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:22,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:47:22,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:47:22,942 INFO L87 Difference]: Start difference. First operand 997 states and 1335 transitions. Second operand 12 states. [2020-12-22 08:47:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:28,741 INFO L93 Difference]: Finished difference Result 3375 states and 4753 transitions. [2020-12-22 08:47:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:28,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-12-22 08:47:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:28,747 INFO L225 Difference]: With dead ends: 3375 [2020-12-22 08:47:28,747 INFO L226 Difference]: Without dead ends: 3369 [2020-12-22 08:47:28,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:47:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2020-12-22 08:47:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 997. [2020-12-22 08:47:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-12-22 08:47:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1334 transitions. [2020-12-22 08:47:29,105 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1334 transitions. Word has length 83 [2020-12-22 08:47:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:29,105 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1334 transitions. [2020-12-22 08:47:29,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:47:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1334 transitions. [2020-12-22 08:47:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:29,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:29,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:29,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:47:29,107 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1863854243, now seen corresponding path program 1 times [2020-12-22 08:47:29,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:29,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260968412] [2020-12-22 08:47:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:29,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260968412] [2020-12-22 08:47:29,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:29,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:29,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629015731] [2020-12-22 08:47:29,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:29,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:29,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:29,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:29,290 INFO L87 Difference]: Start difference. First operand 997 states and 1334 transitions. Second operand 9 states. [2020-12-22 08:47:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:31,888 INFO L93 Difference]: Finished difference Result 2568 states and 3638 transitions. [2020-12-22 08:47:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:31,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:47:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:31,891 INFO L225 Difference]: With dead ends: 2568 [2020-12-22 08:47:31,891 INFO L226 Difference]: Without dead ends: 2071 [2020-12-22 08:47:31,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:47:31,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2020-12-22 08:47:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 997. [2020-12-22 08:47:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-12-22 08:47:32,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1333 transitions. [2020-12-22 08:47:32,244 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1333 transitions. Word has length 83 [2020-12-22 08:47:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:32,245 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1333 transitions. [2020-12-22 08:47:32,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1333 transitions. [2020-12-22 08:47:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:47:32,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:32,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:32,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:47:32,247 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:32,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:32,247 INFO L82 PathProgramCache]: Analyzing trace with hash 901356690, now seen corresponding path program 1 times [2020-12-22 08:47:32,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:32,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89096836] [2020-12-22 08:47:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:34,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89096836] [2020-12-22 08:47:34,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:34,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:47:34,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704645608] [2020-12-22 08:47:34,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:47:34,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:34,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:47:34,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:47:34,179 INFO L87 Difference]: Start difference. First operand 997 states and 1333 transitions. Second operand 29 states. [2020-12-22 08:47:34,763 WARN L197 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 132 [2020-12-22 08:47:35,504 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-22 08:47:35,708 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:47:35,947 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:47:36,171 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:47:36,399 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-22 08:47:36,635 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:47:37,245 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-12-22 08:47:37,729 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2020-12-22 08:47:38,236 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-12-22 08:47:38,823 WARN L197 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-12-22 08:47:39,168 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:47:39,461 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:47:39,730 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-22 08:47:39,966 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:47:40,180 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-22 08:47:40,735 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-22 08:47:41,270 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:47:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:53,726 INFO L93 Difference]: Finished difference Result 2837 states and 3978 transitions. [2020-12-22 08:47:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-22 08:47:53,727 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 84 [2020-12-22 08:47:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:53,729 INFO L225 Difference]: With dead ends: 2837 [2020-12-22 08:47:53,729 INFO L226 Difference]: Without dead ends: 2342 [2020-12-22 08:47:53,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=494, Invalid=2698, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 08:47:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2020-12-22 08:47:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1018. [2020-12-22 08:47:54,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2020-12-22 08:47:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1360 transitions. [2020-12-22 08:47:54,096 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1360 transitions. Word has length 84 [2020-12-22 08:47:54,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:54,096 INFO L481 AbstractCegarLoop]: Abstraction has 1018 states and 1360 transitions. [2020-12-22 08:47:54,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:47:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1360 transitions. [2020-12-22 08:47:54,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:47:54,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:54,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:54,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:47:54,097 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:54,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:54,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1803038574, now seen corresponding path program 1 times [2020-12-22 08:47:54,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:54,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99829044] [2020-12-22 08:47:54,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:56,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99829044] [2020-12-22 08:47:56,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:56,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-12-22 08:47:56,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367216171] [2020-12-22 08:47:56,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 08:47:56,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:56,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 08:47:56,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:47:56,049 INFO L87 Difference]: Start difference. First operand 1018 states and 1360 transitions. Second operand 30 states. [2020-12-22 08:47:56,584 WARN L197 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 120 [2020-12-22 08:47:57,058 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-12-22 08:47:57,238 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-12-22 08:47:57,474 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-12-22 08:47:57,724 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-22 08:47:57,970 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-12-22 08:47:58,221 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-12-22 08:47:58,473 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-22 08:47:59,007 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-12-22 08:47:59,343 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-12-22 08:47:59,760 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-12-22 08:48:00,247 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-12-22 08:48:00,601 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-12-22 08:48:00,920 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-12-22 08:48:03,301 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2020-12-22 08:48:04,956 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2020-12-22 08:48:06,382 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-12-22 08:48:06,652 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-12-22 08:48:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:14,238 INFO L93 Difference]: Finished difference Result 3939 states and 5571 transitions. [2020-12-22 08:48:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-12-22 08:48:14,239 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 84 [2020-12-22 08:48:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:14,242 INFO L225 Difference]: With dead ends: 3939 [2020-12-22 08:48:14,243 INFO L226 Difference]: Without dead ends: 3444 [2020-12-22 08:48:14,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=644, Invalid=3138, Unknown=0, NotChecked=0, Total=3782 [2020-12-22 08:48:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2020-12-22 08:48:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 1029. [2020-12-22 08:48:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-12-22 08:48:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1374 transitions. [2020-12-22 08:48:14,684 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1374 transitions. Word has length 84 [2020-12-22 08:48:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:14,684 INFO L481 AbstractCegarLoop]: Abstraction has 1029 states and 1374 transitions. [2020-12-22 08:48:14,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-22 08:48:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1374 transitions. [2020-12-22 08:48:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:48:14,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:14,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:14,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:48:14,686 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:14,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:14,686 INFO L82 PathProgramCache]: Analyzing trace with hash 469045170, now seen corresponding path program 1 times [2020-12-22 08:48:14,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:14,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244540819] [2020-12-22 08:48:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:16,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244540819] [2020-12-22 08:48:16,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:16,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:48:16,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394041314] [2020-12-22 08:48:16,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:48:16,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:16,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:48:16,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:48:16,802 INFO L87 Difference]: Start difference. First operand 1029 states and 1374 transitions. Second operand 29 states. [2020-12-22 08:48:17,300 WARN L197 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-12-22 08:48:17,756 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-22 08:48:17,943 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-22 08:48:18,186 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-12-22 08:48:18,441 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:48:18,708 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-22 08:48:18,993 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:48:19,262 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-22 08:48:19,867 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-22 08:48:20,227 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-12-22 08:48:20,639 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-12-22 08:48:21,151 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-12-22 08:48:21,541 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2020-12-22 08:48:21,897 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2020-12-22 08:48:22,148 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 08:48:23,888 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-12-22 08:48:24,936 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 08:48:38,519 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 08:48:40,594 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:48:43,310 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-22 08:48:46,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:46,005 INFO L93 Difference]: Finished difference Result 6332 states and 9191 transitions. [2020-12-22 08:48:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-22 08:48:46,007 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 84 [2020-12-22 08:48:46,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:46,012 INFO L225 Difference]: With dead ends: 6332 [2020-12-22 08:48:46,012 INFO L226 Difference]: Without dead ends: 5834 [2020-12-22 08:48:46,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=540, Invalid=3120, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 08:48:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2020-12-22 08:48:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 1034. [2020-12-22 08:48:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-12-22 08:48:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1380 transitions. [2020-12-22 08:48:46,502 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1380 transitions. Word has length 84 [2020-12-22 08:48:46,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:46,503 INFO L481 AbstractCegarLoop]: Abstraction has 1034 states and 1380 transitions. [2020-12-22 08:48:46,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:48:46,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1380 transitions. [2020-12-22 08:48:46,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:48:46,504 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:46,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:46,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:48:46,505 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:46,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1100178831, now seen corresponding path program 1 times [2020-12-22 08:48:46,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:46,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067278589] [2020-12-22 08:48:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:46,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067278589] [2020-12-22 08:48:46,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:46,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:46,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393252382] [2020-12-22 08:48:46,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:46,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:46,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:46,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:46,760 INFO L87 Difference]: Start difference. First operand 1034 states and 1380 transitions. Second operand 9 states. [2020-12-22 08:48:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:50,590 INFO L93 Difference]: Finished difference Result 2114 states and 2945 transitions. [2020-12-22 08:48:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:50,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-12-22 08:48:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:50,595 INFO L225 Difference]: With dead ends: 2114 [2020-12-22 08:48:50,595 INFO L226 Difference]: Without dead ends: 2108 [2020-12-22 08:48:50,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:50,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2020-12-22 08:48:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1034. [2020-12-22 08:48:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-12-22 08:48:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1379 transitions. [2020-12-22 08:48:51,057 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1379 transitions. Word has length 84 [2020-12-22 08:48:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:51,058 INFO L481 AbstractCegarLoop]: Abstraction has 1034 states and 1379 transitions. [2020-12-22 08:48:51,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1379 transitions. [2020-12-22 08:48:51,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:48:51,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:51,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:51,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:48:51,059 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:51,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2044598901, now seen corresponding path program 1 times [2020-12-22 08:48:51,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:51,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019231808] [2020-12-22 08:48:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:51,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019231808] [2020-12-22 08:48:51,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:51,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:51,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641668331] [2020-12-22 08:48:51,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:51,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:51,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:51,269 INFO L87 Difference]: Start difference. First operand 1034 states and 1379 transitions. Second operand 9 states. [2020-12-22 08:48:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:56,023 INFO L93 Difference]: Finished difference Result 2767 states and 3887 transitions. [2020-12-22 08:48:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:56,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-12-22 08:48:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:56,028 INFO L225 Difference]: With dead ends: 2767 [2020-12-22 08:48:56,028 INFO L226 Difference]: Without dead ends: 2748 [2020-12-22 08:48:56,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-12-22 08:48:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1029. [2020-12-22 08:48:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2020-12-22 08:48:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1373 transitions. [2020-12-22 08:48:56,507 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1373 transitions. Word has length 84 [2020-12-22 08:48:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:56,507 INFO L481 AbstractCegarLoop]: Abstraction has 1029 states and 1373 transitions. [2020-12-22 08:48:56,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1373 transitions. [2020-12-22 08:48:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:48:56,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:56,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:56,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:48:56,508 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:56,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:56,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1236288997, now seen corresponding path program 1 times [2020-12-22 08:48:56,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:56,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7845787] [2020-12-22 08:48:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:56,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7845787] [2020-12-22 08:48:56,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:56,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:56,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734756282] [2020-12-22 08:48:56,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:56,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:56,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:56,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:56,754 INFO L87 Difference]: Start difference. First operand 1029 states and 1373 transitions. Second operand 9 states. [2020-12-22 08:49:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:01,610 INFO L93 Difference]: Finished difference Result 3359 states and 4750 transitions. [2020-12-22 08:49:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:49:01,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-12-22 08:49:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:01,615 INFO L225 Difference]: With dead ends: 3359 [2020-12-22 08:49:01,615 INFO L226 Difference]: Without dead ends: 2790 [2020-12-22 08:49:01,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:49:01,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2020-12-22 08:49:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1024. [2020-12-22 08:49:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-12-22 08:49:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1367 transitions. [2020-12-22 08:49:02,089 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1367 transitions. Word has length 84 [2020-12-22 08:49:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:02,089 INFO L481 AbstractCegarLoop]: Abstraction has 1024 states and 1367 transitions. [2020-12-22 08:49:02,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:49:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1367 transitions. [2020-12-22 08:49:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:49:02,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:02,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:49:02,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:49:02,091 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:49:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:02,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2078732722, now seen corresponding path program 1 times [2020-12-22 08:49:02,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:02,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997410472] [2020-12-22 08:49:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:49:04,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997410472] [2020-12-22 08:49:04,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:04,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:49:04,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971274670] [2020-12-22 08:49:04,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:49:04,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:04,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:49:04,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:49:04,749 INFO L87 Difference]: Start difference. First operand 1024 states and 1367 transitions. Second operand 29 states. [2020-12-22 08:49:05,496 WARN L197 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-12-22 08:49:05,867 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-22 08:49:06,080 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-12-22 08:49:06,365 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 08:49:06,705 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-22 08:49:07,057 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:49:07,418 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:49:07,762 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:49:08,553 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 08:49:09,105 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-12-22 08:49:09,757 WARN L197 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2020-12-22 08:49:10,463 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-22 08:49:10,898 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 08:49:11,324 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 08:49:11,658 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-12-22 08:49:12,581 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:49:14,018 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-12-22 08:49:15,473 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 08:49:18,526 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53